CN111935904A - Circuit board welding device and welding method thereof - Google Patents

Abstract

The invention discloses a circuit board welding device and a welding method thereof, and the circuit board welding device comprises a conveying table and a welding table, wherein the welding table is positioned in the center of the conveying table, one end of the conveying table is provided with a first conveying port, the other end of the conveying table is provided with a second conveying port, two ends of the conveying table are respectively provided with a conveying device, a synchronous driving assembly is connected between the conveying devices, the bottom of the welding table is provided with a lifting assembly, one side of the welding table is provided with a pushing assembly, the pushing assembly is matched with the lifting assembly, the first conveying port is used for conveying a first daughter board, the second conveying port is used for a second daughter board, a welding assembly is arranged above the welding table, and the welding assembly is used for welding the first daughter; the method comprises the following steps: a. preparing before welding; b. conveying the circuit board; c. welding the circuit board; d. conveying after welding is finished; e. and (4) processing in batches. The invention realizes the automation of welding the first sub-board and the second sub-board, improves the welding efficiency and reduces the operation requirement of operators.

Description

Circuit board welding device and welding method thereof

Technical Field

The invention belongs to the technical field of circuit boards, and particularly relates to a circuit board welding device and a circuit board welding method.

Background

The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout. The Circuit Board can be called as a Printed Circuit Board or a Printed Circuit Board, and the english name (Printed Circuit Board) PCB, (Flexible Printed Circuit Board) FPC Circuit Board (FPC Circuit Board is also called as a Flexible Circuit Board) which is a Flexible Printed Circuit Board made of polyimide or polyester film as a base material and has high reliability and excellent flexibility. Therefore, the rigid-flex circuit board is a circuit board with FPC (flexible printed circuit) characteristics and PCB (printed circuit board) characteristics, which is formed by combining a flexible circuit board and a rigid circuit board according to relevant process requirements through processes such as pressing and the like. The circuit board mainly comprises a bonding pad, a through hole, a mounting hole, a lead, a component, a connector assembly, filling, an electrical boundary and the like.

When the welding area of the first sub-board and the welding area of the second sub-board are required to be welded, the welding is often required to be performed by experienced operators, the welding precision cannot be guaranteed due to the adoption of manual welding, the welding efficiency is low, and time and labor are wasted.

Disclosure of Invention

The invention aims to solve the technical problems in the prior art and provides a circuit board welding device and a welding method thereof, wherein a welding table is arranged at the center of a conveying table, a first conveying port and a second conveying port are arranged at two ends of the conveying table, the first conveying port is used for conveying a first daughter board, the second conveying port is used for conveying a second daughter board, a synchronous driving assembly drives the conveying devices at the first conveying port and the second conveying port, so that the first daughter board is conveyed to the welding table from the first conveying port, the second daughter board is conveyed to the welding table from the second conveying port, a welding area on the first daughter board is tightly attached to a welding area on the second daughter board, then the welding area on the first daughter board and the welding area on the second daughter board are welded by the welding assembly on the welding table, then the lifting assembly is matched with a pushing assembly, the welded first daughter board and the welded second daughter board are pushed out of the conveying table, the subsequent processing of the first sub-board and the second sub-board is facilitated, so that the automation of the welding of the first sub-board and the second sub-board is realized, the welding precision of the first sub-board and the second sub-board is ensured, the welding efficiency is improved, the processing time is shortened, and meanwhile, the operation requirement of an operator is reduced, so that the processing cost is saved; in the method, the size of the first daughter board and the size of the second daughter board are measured, then the position of the support is adjusted through the threaded rod, so that the welding device can be suitable for the first daughter board and the second daughter board with different sizes, the application range is enlarged, when the sizes of the first daughter board and the second daughter board are the same, the support adjusts the welding rack to be positioned in the center of the conveying table, when the width of the first daughter board is larger than that of the second daughter board, the support drives the welding rack to move a proper distance to one side of the second conveying port, otherwise, the welding rack moves a proper distance to one side of the first conveying port, then the first daughter board is placed on the conveying belt of the first conveying port, the second daughter board is placed on the conveying belt of the second conveying port, the conveying belt simultaneously conveys the first daughter board and the second daughter board which are positioned at two ends to the welding table, the synchronous driving assembly only adopts a single driving motor, the two conveying devices can be controlled, the first daughter board and the second daughter board are conveyed to the welding table simultaneously, energy consumption is greatly saved, welding cost is reduced, the first daughter board and the second daughter board are conveyed to the welding table and then are tightly attached to each other, a welding head on the welding frame starts to weld the welding area, then the hydraulic telescopic rod drives the welding table to descend, the welding table drives the first daughter board after welding is completed, the second daughter board descends to the pushing opening, the pushing cylinder drives the pushing plate to push the first daughter board and the second daughter board which are welded together from the discharging opening, then the hydraulic telescopic rod drives the welding table to ascend, the conveying table conveys the next group of the first daughter board and the second daughter board, batch processing is completed, the lifting assembly is matched with the pushing assembly, the first daughter board and the second daughter board which are convenient to weld are pushed out from the conveying table, and therefore the next group of the first daughter board, the second daughter board can be conveyed, The second daughter board welds, accomplishes circulation, welds in batches, has improved welding efficiency to need not the operation that welding experience is abundant to carry out manual welding, only need operating personnel to place first delivery port simultaneously with first daughter board, second daughter board, thereby reduced operating personnel's requirement.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a circuit board welding set, includes and carries platform and welding bench, its characterized in that: the welding bench is located the center of carrying the platform, the one end of carrying the platform is equipped with first delivery port, the other end of carrying the platform is equipped with the second delivery port, the both ends of carrying the platform all are equipped with conveyor, be connected with the synchronous drive subassembly between the conveyor, the bottom of welding bench is equipped with lifting unit, one side of welding bench is equipped with the top and pushes away the subassembly, top pushes away subassembly and lifting unit phase-match, first delivery port is used for carrying first daughter board, the second delivery port is used for the second daughter board, the top of welding bench is equipped with welding unit, welding unit welds first daughter board and second daughter board. The welding table is arranged at the center of the conveying table, the first conveying port and the second conveying port are arranged at the two ends of the conveying table, the first conveying port is used for conveying a first daughter board, the second conveying port is used for conveying a second daughter board, the synchronous driving assembly drives the conveying devices at the first conveying port and the second conveying port, so that the first daughter board is conveyed to the welding table from the first conveying port, the second daughter board is conveyed to the welding table from the second conveying port, the welding area on the first daughter board is attached to the welding area on the second daughter board, then the welding assembly on the welding table welds the welding area of the first daughter board and the welding area of the second daughter board, then the lifting assembly is matched with the pushing assembly, the welded first daughter board and the welded second daughter board are pushed out of the conveying table, the subsequent processing of the first daughter board and the second daughter board is facilitated, and the automation of the welding of the first daughter board and the second daughter board is realized, the welding precision of the first sub-board and the second sub-board is guaranteed, the welding efficiency is improved, the machining time is shortened, and meanwhile, the operation requirement of operators is reduced, so that the machining cost is saved.

Further, conveyor is equipped with the transportation subassembly, carries the lateral wall of the unilateral in the platform one end to be equipped with at least two sets of transportation subassemblies, is connected with synchronous belt between two sets of transportation subassemblies, and synchronous drive subassembly drive synchronous belt. Carry and set up two sets of at least transportation subassemblies on the single lateral wall in the platform one end, lead to synchronous drive assembly and drive synchronous belt and rotate to make transportation subassembly transport first daughter board, second daughter board to the direction of welding platform respectively, realized the transport of first daughter board, second daughter board through transportation subassembly.

Further, the transportation subassembly includes two delivery wheels, conveyor belt and first gear, the upper end of carrying the interior lateral wall of platform is located to two delivery wheels, first gear is equipped with the lower extreme of locating the interior lateral wall of carrying the platform, first gear position is the below between two delivery wheels even, first gear is close to the inside wall of carrying the platform and is equipped with the bellying, conveyor belt locates between bellying and two delivery wheels, conveyor belt is used for carrying first daughter board and second daughter board respectively, be located and be equipped with synchronous belt between the first gear of carrying platform one end homonymy, be located and be equipped with L type layer board between the both sides delivery assembly of unilateral, L type layer board and conveyor belt phase-match. Synchronous drive assembly drive synchronous belt rotates, synchronous belt drives first gear revolve, first gear drives the bellying and rotates, the bellying drives conveyor belt and rotates around between two delivery wheel and bellying, first daughter board, the second daughter board is placed respectively on conveyor belt, conveyor belt drives first daughter board, the second daughter board removes to the direction of welding bench, thereby first daughter board has been realized, the steady transport of second daughter board, first daughter board has been increased, the stability that the second daughter board was carried.

Further, the synchronous driving component comprises a driving motor and a driving wheel, the conveying table comprises a first driving wheel, a second driving wheel and a driving belt, a motor mounting seat is fixedly connected to the outer side wall of the conveying table close to one end of a first conveying port, the driving motor is arranged on the motor mounting seat, the end portion of the driving motor is connected with a driving wheel in a rotating mode, the first driving wheel and the second driving wheel are both arranged on the outer side wall of the conveying table close to one end of the second conveying port, the driving belt is arranged between the driving gear and the first driving wheel, the first driving wheel is meshed with the second driving wheel, the second driving wheel is located in the driving belt, a synchronizing shaft is arranged on one side, close to the conveying table, of the driving wheel and the second driving wheel, the synchronizing shaft penetrates through the synchronizing belt in the conveying table, the synchronizing shaft is provided with a driving wheel, the driving wheel is located in the synchronizing belt, the driving wheel drives the synchronizing belt to. The driving motor drives the driving wheel to rotate, the driving wheel drives the driving belt to rotate, the driving belt drives the first driving wheel to rotate, the first driving wheel and the driving wheel rotate in the same direction, the first driving wheel drives the second driving wheel to rotate, so that the second driving wheel and the driving wheel rotate in opposite directions, the synchronizing shaft connected to the driving wheel penetrates one end of the conveying table, the synchronizing shaft connected to the second driving wheel penetrates the other end of the conveying table, and the driving wheel connected to the synchronizing shaft is used for driving the synchronizing belt to rotate, so that the conveying assembly at one end of the conveying table and the conveying assembly at the other end of the conveying table synchronously convey in opposite directions, and the first daughter board and the second daughter board synchronously move towards the welding table, and the synchronous conveying of the first daughter board and the second daughter board by only one motor is realized, the structure is simple, the design is ingenious, and the energy consumption is greatly reduced, meanwhile, the synchronism of the first sub-board and the second sub-board is ensured.

Further, lifting unit is equipped with the base, the bottom at transport platform inner center is located to the base, the base is located the welding bench under, the center of base is equipped with first spout, be equipped with first slip post in the spout, the both ends of first slip post all are equipped with first slider, the bottom of welding bench corresponds first spout and is equipped with the second spout, be equipped with second slip post in the second spout, the both ends of second slip post all are equipped with the second slider, it has the hinge bar to lie in to articulate between the first slider of first slip post one end and the second slider that lies in the second slip post other end, cross arrangement between two hinge bars, the center of two hinge bars is rotated and is connected, fixedly connected with hydraulic telescoping rod between base top and the bottom of welding bench, hydraulic telescoping rod drive welding bench goes up and down. The hydraulic telescopic rod controls the welding table to move up and down, when the first sub-plate and the second sub-plate are welded, the hydraulic telescopic rod controls the welding table to descend, two ends of two hinge rods which are arranged in a crossed mode move towards two ends of the conveying table respectively, so that the welding table is controlled to descend in parallel, the descending stability of the first sub-plate and the second sub-plate is improved, the influence on the welding position which is just finished is avoided, and the welding quality is reduced,

furthermore, both sides of the welding table are provided with guide blocks, both side walls in the conveying table are provided with guide grooves, the guide grooves are matched with the guide blocks, one side of the conveying table is provided with a pushing port, the other side of the conveying table is correspondingly provided with a discharge port, the pushing port and the discharge port are communicated with the guide grooves, the pushing assembly is arranged at the pushing port, and the pushing port and the discharge port are matched with the first sub-board and the second sub-board. The guide block and the guide groove are arranged to play a role in guiding the lifting of the welding table, so that the lifting stability of the welding table is improved, the pushing port and the discharging port are arranged to push the first sub-plate and the second sub-plate which are welded by the pushing assembly to be ejected out from the conveying table to the discharging port, and the next group of first sub-plate and the next group of second sub-plate can be continuously processed.

Further, the top pushes away the subassembly and includes top push cylinder, cylinder mount pad and top push plate, and cylinder mount pad fixed connection is in carrying one side that the platform is located the top and pushes away the mouth, and the top push plate is located the top push cylinder and is close to the one side of carrying the platform, and top push plate and top push mouth phase-match carry the opposite side of platform to be equipped with the discharge frame, and the top of discharge frame is equipped with the slope, and the discharge frame is located the exit. The welding table drives the first sub-board and the second sub-board which are welded to descend, so that when the first sub-board and the second sub-board which are welded to are located at the pushing port, the pushing cylinder operates to control the pushing plate to move towards the direction of the discharge port, the pushing plate pushes the first sub-board and the second sub-board which are welded to move out of the discharge port, the first sub-board and the second sub-board which are welded to fall onto a slope at the top of the discharge frame, the first sub-board and the second sub-board which are welded to slide down in an inclined mode, the first sub-board and the second sub-board are just connected, and the discharge port and the ground have a fall, so that the first sub-board and the second sub-board can fall onto the ground when the discharge port is moved out, the welding position of the first sub-board and the second sub-board is affected, the welding quality is reduced, the discharge frame is provided with a slope, and the, then slowly the landing along with the slope to avoid first daughter board and second daughter board to take place to fall, guaranteed welding quality.

Further, the welding subassembly is equipped with the welding frame, and sliding connection has the sliding block on the welding frame, and the bottom fixedly connected with welder of sliding block, the both sides fixedly connected with guard plate of sliding block, welder are located the guard plate, and the guard plate and first daughter board, second daughter board phase-match carry the both sides fixedly connected with fixing base at platform center, and the both ends of welding frame all are equipped with the support, and on the fixing base was located to the support, the support was equipped with the regulating part. After first daughter board and second daughter board were carried the welding bench, the weld zone of first daughter board is hugged closely with the weld zone of second daughter board, the support is used for fixed welding frame, the regulating part is used for adjusting the position of welding frame, make the weld zone of soldered connection on the welding frame with hug closely first daughter board together, the weld zone of second daughter board corresponds, can be applicable to the first daughter board and the second daughter board of various sizes, welding set's application scope has been increased, the soldered connection can produce the high heat at the in-process that welds in the weld zone, thereby influence first daughter board and second daughter board outside the weld zone, first daughter board and second daughter board are impaired easily, the guard plate plays a guard action to it, the guard plate follows the sliding block and removes, realized that the soldered connection is in the removal welding process, the guard plate follows the soldered connection always and protects first daughter board and second daughter board.

Furthermore, the adjusting part is provided with fixed blocks, the fixed blocks are fixedly connected to two sides of the top of the fixed seat, threaded rods are connected between the fixed blocks and penetrate through the support, nuts are arranged on the threaded rods, and the nuts are screwed on two sides of the support. When the sizes of the first daughter board and the second daughter board are the same, when the first daughter board and the second daughter board are conveyed to the welding table, the welding area of the first daughter board is tightly attached to the welding area of the second daughter board and is positioned in the center of the conveying table, the support is moved to the middle of the conveying table by loosening the nuts at the two ends of the threaded rod, and then the support is fixed by tightening the nuts on the two sides of the support, so that the welding head on the welding frame can weld the welding areas conveniently; when the width of the first daughter board is larger than that of the second daughter board, when the first daughter board and the second daughter board are conveyed to the welding table, the welding area of the first daughter board is tightly attached to the welding area of the second daughter board and is positioned at one side close to the second daughter board of the conveying table, the support is moved to the corresponding position of one side of the second daughter board of the conveying table by loosening the nuts at the two ends of the threaded rod, otherwise, the support is moved for a proper distance to one side of the first conveying port, and then the nuts are screwed on the two sides of the support to fix the support, so that the welding head on the welding frame can weld the welding area conveniently.

A circuit board welding method is characterized by comprising the following steps:

a. preparation before welding

Firstly, measuring a first sub-board and a second sub-board which need to be welded, then detecting the operation conditions of a conveying device, a synchronous driving assembly, a welding assembly, a pushing assembly and a lifting assembly, returning the operation conditions to an initial position, then adjusting the position of a support on a fixed seat to enable a welding frame to be positioned at the central position of a conveying table, loosening nuts at two ends of a threaded rod, then moving the support along the direction of the threaded rod, moving the support to a proper position, and then screwing the nuts at two ends of the threaded rod;

b. transport of circuit boards

The method comprises the steps that a first daughter board is placed at a first conveying port of a conveying table, a second daughter board is placed at a second conveying port of the conveying table, a driving motor runs to drive a driving wheel to rotate, the driving wheel drives a first driving wheel to rotate in the same direction through a driving belt, the first driving wheel is meshed with a second driving wheel to drive the second driving wheel to rotate in different directions, the driving wheel and the second driving wheel rotate in different directions, the second driving wheel and the driving wheel respectively drive a synchronizing shaft to rotate, the driving wheel drives the synchronizing belt to rotate, and a conveying assembly is controlled to run, so that the first daughter board of a first input port moves to a welding table at the center of the conveying table, and meanwhile, the second daughter board of a second input port moves to the welding table at the center of the conveying table;

c. soldering of circuit boards

After the first daughter board and the second daughter board are conveyed to the welding table, a welding area of the first daughter board is connected with a welding area of the second daughter board, a welding gun slides on the welding frame to weld a circuit board in the welding area, and a protection plate abuts against the tops of the first daughter board and the second daughter board;

d. transport after completion of welding

After the first daughter board and the second daughter board are welded, the hydraulic telescopic rod descends to drive the welding table to descend along the guide groove, two ends of two hinge rods which are arranged in a crossed mode respectively move towards two sides of the base and two sides of the welding table, so that the welding table with the first daughter board and the second daughter board descends in parallel, when the first daughter board and the second daughter board are located at the pushing opening, the pushing cylinder pushes the pushing plate, the pushing plate pushes the first daughter board and the second daughter board which are welded together, the first daughter board and the second daughter board are pushed towards the discharge opening, and the first daughter board and the second daughter board are discharged from the discharge opening and fall onto the discharge frame;

e. batch processing

And (d) after the ejection plate ejects the first daughter board and the second daughter board from the discharge port, the hydraulic telescopic rod upwards pushes the welding table to enable the welding table to return to the initial position, the first daughter board is continuously conveyed by the first conveying port, meanwhile, the second daughter board is continuously conveyed by the second conveying port, and the steps b to d are circulated, so that batch welding is completed.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the welding table is arranged at the center of the conveying table, the first conveying port and the second conveying port are arranged at the two ends of the conveying table, the first conveying port is used for conveying a first daughter board, the second conveying port is used for conveying a second daughter board, the synchronous driving assembly drives the conveying devices at the first conveying port and the second conveying port, so that the first daughter board is conveyed to the welding table from the first conveying port, the second daughter board is conveyed to the welding table from the second conveying port, the welding area on the first daughter board is attached to the welding area on the second daughter board, then the welding assembly on the welding table welds the welding area of the first daughter board and the welding area of the second daughter board, then the lifting assembly is matched with the pushing assembly, the welded first daughter board and the welded second daughter board are pushed out of the conveying table, the subsequent processing of the first daughter board and the second daughter board is facilitated, and the automation of the welding of the first daughter board and the second daughter board is realized, the welding precision of the first sub-board and the second sub-board is guaranteed, the welding efficiency is improved, the machining time is shortened, and meanwhile, the operation requirement of operators is reduced, so that the machining cost is saved.

The conveying assembly comprises two conveying wheels, a conveying belt and a first gear, wherein the two conveying wheels are arranged at the upper end of the side wall in the conveying table, the first gear is provided with the lower end of the side wall in the conveying table, the first gear is connected with the lower part between the two conveying wheels, a protruding part is arranged on the inner side wall, close to the conveying table, of the first gear, the conveying belt is arranged between the protruding part and the two conveying wheels, the conveying belt is respectively used for conveying a first sub-plate and a second sub-plate, a synchronous belt is arranged between the first gears on the same side in one end of the conveying table, an L-shaped supporting plate is arranged between the conveying assemblies on the two sides of one side, and the L-shaped supporting plate is matched with the. Synchronous drive assembly drive synchronous belt rotates, synchronous belt drives first gear revolve, first gear drives the bellying and rotates, the bellying drives conveyor belt and rotates around between two delivery wheel and bellying, first daughter board, the second daughter board is placed respectively on conveyor belt, conveyor belt drives first daughter board, the second daughter board removes to the direction of welding bench, thereby first daughter board has been realized, the steady transport of second daughter board, first daughter board has been increased, the stability that the second daughter board was carried.

The synchronous driving component of the invention comprises a driving motor and a driving wheel, the conveying table comprises a first driving wheel, a second driving wheel and a driving belt, a motor mounting seat is fixedly connected to the outer side wall of the conveying table close to one end of a first conveying port, the driving motor is arranged on the motor mounting seat, the end portion of the driving motor is connected with a driving wheel in a rotating mode, the first driving wheel and the second driving wheel are both arranged on the outer side wall of the conveying table close to one end of the second conveying port, the driving belt is arranged between the driving gear and the first driving wheel, the first driving wheel is meshed with the second driving wheel, the second driving wheel is located in the driving belt, a synchronizing shaft is arranged on one side, close to the conveying table, of the driving wheel and the second driving wheel, the synchronizing shaft penetrates through the synchronizing belt in the conveying table, the synchronizing shaft is provided with a driving wheel, the driving wheel is located in the synchronizing belt, the driving wheel drives the synchronizing belt to. The driving motor drives the driving wheel to rotate, the driving wheel drives the driving belt to rotate, the driving belt drives the first driving wheel to rotate, the first driving wheel and the driving wheel rotate in the same direction, the first driving wheel drives the second driving wheel to rotate, so that the second driving wheel and the driving wheel rotate in opposite directions, the synchronizing shaft connected to the driving wheel penetrates one end of the conveying table, the synchronizing shaft connected to the second driving wheel penetrates the other end of the conveying table, and the driving wheel connected to the synchronizing shaft is used for driving the synchronizing belt to rotate, so that the conveying assembly at one end of the conveying table and the conveying assembly at the other end of the conveying table synchronously convey in opposite directions, and the first daughter board and the second daughter board synchronously move towards the welding table, and the synchronous conveying of the first daughter board and the second daughter board by only one motor is realized, the structure is simple, the design is ingenious, and the energy consumption is greatly reduced, meanwhile, the synchronism of the first sub-board and the second sub-board is ensured.

In the step a of the invention, the size of the first daughter board and the second daughter board is measured, and then the position of the support is adjusted through the threaded rod, so that the position of the welding frame on the conveying table is adjusted, and therefore, the welding device can be suitable for the first daughter board and the second daughter board with different sizes, and the application range is increased.

In step b, a single driving motor drives a driving wheel to rotate, a rotating belt of the driving wheel drives a belt to rotate, the driving belt controls a first driving wheel to rotate, the first driving wheel and the driving wheel keep rotating in the same direction, the first driving wheel drives a second driving wheel to rotate, so that the second driving wheel and the driving wheel keep rotating in the direction, the second driving wheel and the driving wheel respectively drive synchronizing shafts located at two ends of a conveying table to rotate, the synchronizing shafts control the driving wheel to rotate, the driving wheel drives a synchronizing belt to rotate, the synchronizing belt respectively drives conveying assemblies in a first conveying port and a second conveying port to operate, so that the conveying assemblies in the first conveying port and the conveying assemblies in the second conveying port keep rotating in the direction, and the first daughter board and the second daughter board are controlled to synchronously move towards a welding table. A single driving motor is adopted to drive the first sub-board and the second sub-board to synchronously move from the two ends of the conveying table to the welding table at the center of the conveying table, so that the energy loss is greatly reduced, the use of the motor is reduced, the welding cost is reduced, and the vibration caused by the motor is reduced, thereby improving the welding quality and the welding precision

In the step d of the invention, the pushing plate pushes the first sub-board and the second sub-board which are welded to move out from the discharge port, the first sub-board and the second sub-board which are welded to fall onto the slope at the top of the discharge frame, the first sub-board and the second sub-board which are welded to slide down in an inclined manner, the first sub-board and the second sub-board are just connected and fall off from the ground due to the fact that the first sub-board and the second sub-board are separated from each other and the discharge port falls off from the ground, the welding position of the first sub-board and the second sub-board is affected, and the welding quality is reduced.

In the step e of the invention, the lifting assembly is matched with the pushing assembly to push the welded first daughter board and the welded second daughter board out of the conveying table, so that the subsequent processing of the first daughter board and the second daughter board is facilitated, the automation of welding the first daughter board and the second daughter board is realized, the welding precision of the first daughter board and the second daughter board is ensured, the welding efficiency is improved, the processing time is shortened, meanwhile, the operation requirement of an operator is reduced, and the processing cost is saved.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of a range hood according to the present invention;

FIG. 2 is a schematic view of the connection between the conveying table and the synchronous driving assembly and the conveying device;

FIG. 3 is a schematic view of the connection of the welding assembly to the adjustment member of the present invention;

FIG. 4 is a schematic view of the pushing assembly of the present invention;

FIG. 5 is a schematic view of the telescoping assembly and the welding station of the present invention;

FIG. 6 is a schematic view of the present invention in a configuration where the first daughter board and the second daughter board are transported to a soldering station;

FIG. 7 is a schematic structural view of the first sub-board and the second sub-board after the soldering process is completed and located at the pushing opening according to the present invention;

fig. 8 is a schematic structural diagram of the pushing assembly pushing the first sub-board and the second sub-board to the discharge port according to the present invention.

In the figure, 1-the delivery table; 2-a welding table; 3-a first delivery port; 4-a second delivery port; 5-a synchronous drive assembly; 6-a lifting assembly; 7-a pushing assembly; 8-a first daughter board; 9-a second daughter board; 10-welding the assembly; 11-a transport assembly; 12-a timing belt; 13-a delivery wheel; 14-a conveyor belt; 15-a first gear; 16-a boss; 17-L shaped pallets; 18-a drive motor; 19-a driving wheel; 20-a first drive wheel; 21-a second transmission wheel; 22-a drive belt; 23-a motor mount; 24-hydraulic telescopic rod; 25-a synchronizing shaft; 26-a driving wheel; 27-a base; 28-a first runner; 29-a first sliding column; 30-a first slide; 31-a second runner; 32-a second sliding column; 33-a second slider; 34-a hinged lever; 35-a guide block; 36-a guide groove; 37-a pushing port; 38-a discharge port; 39-a pushing cylinder; 40-cylinder mount; 41-a push plate; 42-a discharge rack; 43-slope; 44-a welding frame; 45-a sliding block; 46-a welding torch; 47-protective plate; 48-a fixed seat; 49-support; 50-fixing block; 51-a threaded rod; 52-a nut; 53-weld zone.

Detailed Description

As shown in fig. 1 to 5, a circuit board welding device according to the present invention includes a conveying table 1 and a welding table 2, the welding table 2 is located at the center of the conveying table 1, one end of the conveying table 1 is provided with a first conveying port 3, the other end of the conveying table 1 is provided with a second conveying port 4, two ends of the conveying table 1 are both provided with conveying devices, a synchronous driving assembly 5 is connected between the conveying devices, the bottom of the welding table 2 is provided with a lifting assembly 6, one side of the welding table 2 is provided with a pushing assembly 7, the pushing assembly 7 is matched with the lifting assembly 6, the first conveying port 3 is used for conveying a first daughter board 8, the second conveying port 4 is used for a second daughter board 9, a welding assembly 10 is arranged above the welding table 2, and the welding assembly 10 welds the first daughter board 8 and the second daughter board 9.

The conveying device is provided with a conveying assembly 11, the side wall of one side in one end of the conveying table 1 is provided with at least two groups of conveying assemblies 11, a synchronous belt 12 is connected between the two groups of conveying assemblies 11, and the synchronous driving assembly 5 drives the synchronous belt 12. Carry and set up two sets of transportation subassemblies 11 at least on the single lateral wall in 1 one end of platform, lead to synchronous drive assembly 5 and drive synchronous belt 12 and rotate to make transportation subassembly 11 transport first daughter board 8, second daughter board 9 respectively to the direction of welding bench 2, realized the transport of first daughter board 8, second daughter board 9 through transportation subassembly 11.

The transportation assembly 11 includes two delivery wheels 13, conveyor belt 14 and first gear 15, the upper end of carrying the lateral wall in the platform 1 is located to two delivery wheels 13, first gear 15 is equipped with the lower extreme of locating the lateral wall in carrying the platform 1, first gear 15 position is the below between two delivery wheels 13 even, first gear 15 is close to the inside wall of carrying the platform 1 and is equipped with bellying 16, conveyor belt 14 locates between bellying 16 and two delivery wheels 13, conveyor belt 14 is used for carrying first daughter board 8 and second daughter board 9 respectively, be located and be equipped with synchronous belt 12 between the first gear 15 of carrying platform 1 one end homonymy, be located and be equipped with L type layer board 17 between the both sides conveyor assembly of unilateral, L type layer board 17 and conveyor belt 14 phase-match. Synchronous drive assembly 5 drive synchronous belt 12 rotates, synchronous belt 12 drives first gear 15 and rotates, first gear 15 drives bellying 16 and rotates, bellying 16 drives conveyor belt 14 and rotates around between two delivery wheel 13 and bellying 16, first daughter board 8, second daughter board 9 is placed respectively on conveyor belt 14, conveyor belt 14 drives first daughter board 8, second daughter board 9 removes to the direction of welding bench 2, thereby first daughter board 8 has been realized, the steady transport of second daughter board 9, first daughter board 8 has been increased, the stability that second daughter board 9 carried.

The synchronous driving component 5 comprises a driving motor 18, a driving wheel 19, a first driving wheel 20, a second driving wheel 21 and a driving belt 22, the outer side wall of the conveying table 1 close to one end of the first conveying port 3 is fixedly connected with a motor mounting seat 23, the driving motor 18 is arranged on the motor mounting seat 23, the end part of the driving motor 18 is rotatably connected with the driving wheel 19, the first driving wheel 20 and the second driving wheel 21 are both arranged on the outer side wall of the conveying table 1 close to one end of the second conveying port 4, the driving belt 22 is arranged between the driving gear and the first driving wheel, the first driving wheel 20 is meshed with the second driving wheel 21, the second driving wheel 21 is positioned in the driving belt 22, the driving wheel 19 and one side of the second driving wheel 21 close to the conveying table 1 are both provided with a synchronous shaft 25, the synchronous shaft 25 penetrates through the synchronous belt 12 in the conveying table 1, the synchronous shaft 25 is provided with a driving wheel 26, the driving wheel drives the synchronous belt 12 to rotate, and the synchronous driving assembly 5 drives the first sub-plate 8 and the second sub-plate 9 to simultaneously move towards the center of the conveying table 1. The driving motor 18 drives the driving wheel 19 to rotate, the driving wheel 19 drives the driving belt 22 to rotate, the driving belt 22 drives the first driving wheel 20 to rotate, the first driving wheel 20 and the driving wheel 19 rotate in the same direction, the first driving wheel 20 drives the second driving wheel 21 to rotate, so that the second driving wheel 21 and the driving wheel 19 rotate in opposite directions, the synchronizing shaft 25 connected to the driving wheel 19 penetrates through one end of the conveying table 1, the synchronizing shaft 25 connected to the second driving wheel 21 penetrates through the other end of the conveying table 1, the driving wheel 26 connected to the synchronizing shaft 25 is used for driving the synchronizing belt 12 to rotate, so that the conveying assembly 11 at one end of the conveying table 1 and the conveying assembly 11 at the other end of the conveying table 1 are synchronously conveyed in different directions, the first daughter board 8 and the second daughter board 9 synchronously move towards the welding table 2, and the synchronous conveying of the first daughter board and the second daughter board 9 by only adopting one motor is realized, simple structure, design benefit, and greatly reduced the consumption of the energy, guaranteed the synchronism of first daughter board 8 with second daughter board 9 simultaneously.

Lifting unit 6 is equipped with base 27, base 27 locates the bottom at center in carrying platform 1, base 27 is located welding bench 2 under, base 27's center is equipped with first spout 28, be equipped with first slip post 29 in the spout, the both ends of first slip post 29 all are equipped with first slider 30, the bottom of welding bench 2 corresponds first spout 28 and is equipped with second spout 31, be equipped with second slip post 32 in the second spout 31, the both ends of second slip post 32 all are equipped with second slider 33, it has articulated pole 34 to lie in between first slider 30 of first slip post 29 one end and the second slider 33 that is located the two slip post other ends, cross arrangement between two articulated poles 34, the center of two articulated poles 34 rotates to be connected, fixedly connected with hydraulic telescoping rod 24 between base 27 top and the bottom of welding bench 2, hydraulic telescoping rod 24 drives welding bench 2 and goes up and down. The hydraulic telescopic rod 24 controls the welding table 2 to perform lifting motion, when the welding of the first sub-plate 8 and the second sub-plate 9 is completed, the hydraulic telescopic rod 24 controls the welding table 2 to descend, and two ends of the two hinge rods 34 which are arranged in a crossed mode move towards two ends of the conveying table 1 respectively, so that the welding table 2 is controlled to descend in parallel, the descending stability of the first sub-plate 8 and the second sub-plate 9 is improved, the influence on the just-completed welding position is avoided, the welding quality is reduced,

the two sides of the welding table 2 are provided with guide blocks 35, two side walls in the conveying table 1 are provided with guide grooves 36, the guide grooves 36 are matched with the guide blocks 35, one side of the conveying table 1 is provided with a pushing opening 37, the other side of the conveying table 1 is correspondingly provided with a discharge opening 38, the pushing opening 37 and the discharge opening 38 are communicated with the guide grooves 36, the pushing assembly 7 is arranged at the pushing opening 37, and the pushing opening 37 and the discharge opening 38 are matched with the first sub-board 8 and the second sub-board 9. The guide block 35 and the guide groove 36 are arranged to guide the lifting of the welding table 2, so that the lifting stability of the welding table 2 is improved, the pushing port 37 and the discharging port 38 are arranged to push the assembly 7 to push the welded first sub-plate 8 and the welded second sub-plate 9 out of the conveying table 1 to the discharging port 38, and the next group of first sub-plate 8 and the next group of second sub-plate 9 can be processed continuously.

The pushing assembly 7 comprises a pushing cylinder 39, a cylinder mounting seat 40 and a pushing plate 41, the cylinder mounting seat 40 is fixedly connected to one side, located at the pushing port 37, of the conveying table 1, the pushing cylinder 39 is arranged on the cylinder mounting seat 40, the pushing plate 41 is arranged on one side, close to the conveying table 1, of the pushing cylinder 39, the pushing plate 41 is matched with the pushing port 37, a discharge frame 42 is arranged on the other side of the conveying table 1, a slope 43 is arranged at the top of the discharge frame 42, and the discharge frame 42 is located at the discharge port 38. The welding table 2 drives the first daughter board 8 and the second daughter board 9 which are welded to descend, so that when the first daughter board 8 and the second daughter board 9 which are welded are located at the pushing port 37, the pushing cylinder 39 operates to control the pushing plate 41 to move towards the direction of the discharging port 38, the pushing plate 41 pushes the first daughter board 8 and the second daughter board 9 which are welded to move out from the discharging port 38, the first daughter board 8 and the second daughter board 9 which are welded to fall onto the slope 43 at the top of the discharging rack 42, the first daughter board 8 and the second daughter board 9 which are welded to slide obliquely downwards, as the branching of the first daughter board 8 and the second daughter board 9 is just completed and the discharging port 38 and the ground have a fall, the first daughter board 8 and the second daughter board 9 can fall onto the ground when the discharging port 38 moves out, the welding of the first daughter board 8 and the second daughter board 9 is affected, the welding quality is reduced, the discharging rack 42 is provided with the slope 43, the first sub-board 8 and the second sub-board 9 can fall onto the slope 43 after being moved out of the discharge port 38, and then slowly fall off along with the slope 43, so that the first sub-board 8 and the second sub-board 9 are prevented from falling, and the welding quality is guaranteed.

Welding set 10 is equipped with weld holder 44, sliding connection has sliding block 45 on weld holder 44, sliding block 45's bottom fixedly connected with welder 46, sliding block 45's both sides fixedly connected with guard plate 47, welder 46 is located guard plate 47, guard plate 47 and first daughter board 8, second daughter board 9 phase-match, carry the both sides fixedly connected with fixing base 48 at platform 1 center, weld holder 44's both ends all are equipped with support 49, support 49 is located on fixing base 48, support 49 is equipped with the regulating part. After the first daughter board 8 and the second daughter board 9 are conveyed to the welding table 2, the welding area of the first daughter board 8 is tightly attached to the welding area of the second daughter board 9, the support 49 is used for fixing the welding frame 44, the adjusting piece is used for adjusting the position of the welding frame 44, the welding head on the welding frame 44 corresponds to the welding area of the first sub-board 8 and the welding area of the second sub-board 9 which are tightly attached together, the welding device can be suitable for the first sub-board 8 and the second sub-board 9 with various sizes, the application range of the welding device is increased, the welding head can generate high heat in the welding process in the welding areas, thereby influencing the first sub-board 8 and the second sub-board 9 outside the welding area, the first sub-board 8 and the second sub-board 9 are easy to be damaged, the protection board 47 plays a protection role for the first sub-board 8 and the second sub-board 9, the protection board 47 moves along with the sliding block 45, the welding head is realized in the moving welding process, the protection plate 47 always protects the first sub-plate 8 and the second sub-plate 9 following the welding head.

The adjusting part is provided with fixing blocks 50, the fixing blocks 50 are fixedly connected to two sides of the top of the fixing seat 48, a threaded rod 51 is connected between the fixing blocks 50, the threaded rod 51 penetrates through the support 49, a nut 52 is arranged on the threaded rod 51, and the nut 52 is screwed on two sides of the support 49. When the sizes of the first daughter board 8 and the second daughter board 9 are the same, and the first daughter board 8 and the second daughter board 9 are conveyed to the welding table 2, the welding area of the first daughter board 8 and the welding area of the second daughter board 9 are tightly attached to each other and are positioned in the center of the conveying table 1, the support 49 is moved to the middle of the conveying table 1 by loosening the nuts 52 at the two ends of the threaded rod 51, and then the support 49 is fixed by tightening the nuts 52 at the two sides of the support 49, so that the welding head on the welding frame 44 can weld the welding areas conveniently; when the width of the first daughter board 8 is greater than that of the second daughter board 9, and the first daughter board 8 and the second daughter board 9 are conveyed to the welding table 2, the welding area of the first daughter board 8 and the welding area of the second daughter board 9 are closely attached to each other and located on one side close to the second daughter board 9 of the conveying table 1, the support 49 is moved to the corresponding position on one side of the second daughter board 9 of the conveying table 1 by loosening the nuts 52 on the two ends of the threaded rod 51, otherwise, the support 49 is moved to one side of the first conveying port 3 by a proper distance, and then the nuts 52 are tightened on the two sides of the support 49 to fix the support 49, so that the welding head on the welding frame 44 can weld the welding areas conveniently.

As shown in fig. 6 to 8, a circuit board soldering method according to the present invention includes the following steps:

a. preparation before welding

Firstly, measuring a first daughter board 8 and a second daughter board 9 which need to be welded, then detecting the running conditions of a conveying device, a synchronous driving assembly 5, a welding assembly 10, a pushing assembly 7 and a lifting assembly 6, returning the running conditions to an initial position, then adjusting the position of a support 49 on a fixed seat 48 to enable a welding frame 44 to be located at the central position of a conveying table 1, loosening nuts 52 at two ends of a threaded rod 51, then moving the support 49 along the direction of the threaded rod 51, moving the support 49 to a proper position, and then screwing the nuts 52 at two ends of the threaded rod 51;

b. transport of circuit boards

The first sub-board 8 is put in the first conveying port 3 of the conveying platform 1, the second sub-board 9 is put in the second conveying port 4 of the conveying platform 1, the driving motor 18 operates, thereby driving the driving wheel 19 to rotate, the driving wheel 19 drives the first driving wheel 20 to rotate in the same direction through the driving belt 22, the first driving wheel 20 is meshed with the second driving wheel 21, thereby driving the second transmission wheel 21 to rotate in different directions, so that the driving wheel 19 and the second transmission wheel 21 rotate in different directions, the second transmission wheel 21 and the driving wheel 19 respectively drive the synchronous shaft 25 to rotate, thereby driving the driving wheel 26 to rotate, the driving wheel 26 driving the synchronous belt 12 to rotate, thereby controlling the operation of the transport unit 11 so that the first sub-panel 8 of the first input port moves towards the welding station 2 in the centre of the delivery station 1, while the second sub-panel 9 of the second input port moves towards the welding station 2 in the centre of the delivery station 1;

c. soldering of circuit boards

After the first daughter board 8 and the second daughter board 9 are conveyed to the welding table 2, the welding area of the first daughter board 8 is connected with the welding area of the second daughter board 9, the welding gun 46 slides on the welding frame 44 to weld the circuit board in the welding area, and the protection plate 47 abuts against the tops of the first daughter board 8 and the second daughter board 9;

d. transport after completion of welding

After the first daughter board 8 and the second daughter board 9 are welded, the hydraulic telescopic rod 24 descends to drive the welding table 2 to descend along the guide groove 36, two ends of two hinge rods 34 which are arranged in a crossed manner respectively move towards two sides of the base 27 and two sides of the welding table 2, so that the welding table 2 with the first daughter board 8 and the second daughter board 9 descends in parallel, when the first daughter board 8 and the second daughter board 9 are positioned at the pushing port 37, the pushing cylinder 39 pushes the pushing plate 41, the pushing plate 41 pushes the first daughter board 8 and the second daughter board 9 which are welded together, the first daughter board 8 and the second daughter board 9 are pushed towards the discharge port 38, and the first daughter board 8 and the second daughter board 9 are discharged from the discharge port 38 and fall onto the discharge frame 42;

e. batch processing

After the pushing plate 41 pushes the first daughter board 8 and the second daughter board 9 out of the discharge port 38, the hydraulic telescopic rod 24 pushes the welding table 2 upwards, so that the welding table 2 returns to the initial position, the first daughter board 8 is continuously conveyed by the first conveying port 3, meanwhile, the second daughter board 9 is continuously conveyed by the second conveying port 4, and the steps b to d are repeated, thereby completing batch welding.

The welding table 2 is installed at the center of the conveying table 1, a first conveying port 3 and a second conveying port 4 are arranged at two ends of the conveying table 1, the first conveying port 3 is used for conveying a first daughter board 8, the second conveying port 4 is used for conveying a second daughter board 9, the synchronous driving assembly 5 drives the conveying devices at the first conveying port 3 and the second conveying port 4, so that the first daughter board 8 is conveyed to the welding table 2 from the first conveying port 3, the second daughter board 9 is conveyed to the welding table 2 from the second conveying port 4, the welding region on the first daughter board 8 is tightly attached to the welding region on the second daughter board 9, then the welding assembly 10 on the welding table 2 is used for welding the welding region of the first daughter board 8 and the welding region of the second daughter board 9, then the lifting assembly 6 is matched with the pushing assembly 7, the welded first daughter board 8 and the welded second daughter board 9 are pushed out of the conveying table 1, the subsequent processing of the first sub-board 8 and the second sub-board 9 is facilitated, so that the automation of the welding of the first sub-board 8 and the second sub-board 9 is realized, the welding precision of the first sub-board 8 and the second sub-board 9 is ensured, the welding efficiency is improved, the processing time is shortened, and meanwhile, the operation requirement of an operator is reduced, so that the processing cost is saved; in the method, the sizes of the first daughter board 8 and the second daughter board 9 are measured, then the position of the support 49 is adjusted through the threaded rod 51, so that the position of the welding frame 44 on the conveying table 1 is adjusted, the welding device can be suitable for the first daughter board 8 and the second daughter board 9 with different sizes, the application range is increased, when the sizes of the first daughter board 8 and the second daughter board 9 are the same, the support 49 adjusts the welding frame 44 to be positioned in the center of the conveying table 1, when the width of the first daughter board 8 is larger than that of the second daughter board 9, the support 49 drives the welding frame 44 to move a proper distance to one side of the second conveying port 4, otherwise, the welding frame moves a proper distance to one side of the first conveying port 3, then the first daughter board 8 is placed on the conveying belt 14 of the first conveying port 3, and simultaneously the second daughter board 9 is placed on the conveying belt 14 of the second conveying port 4, and the conveying belt 14 simultaneously moves the first daughter board 8, the second daughter board 9, the second daughter board 9 is conveyed to the welding table 2, the synchronous driving assembly 5 only adopts a single driving motor 18, two conveying devices can be controlled, the first daughter board 8 and the second daughter board 9 are conveyed to the welding table 2, energy consumption is greatly saved, welding cost is reduced, after the first daughter board 8 and the second daughter board 9 are conveyed to the welding table 2, the welding areas are tightly attached, a welding head on a welding frame 44 starts to weld the welding areas, then the hydraulic telescopic rod 24 drives the welding table 2 to descend, the welding table 2 drives the welded first daughter board 8 and the welded second daughter board 9 to descend to the pushing port 37, the pushing cylinder 39 drives the pushing plate 41 to push the welded first daughter board 8 and the welded second daughter board 9 out from the discharge port 38, then the hydraulic telescopic rod 24 drives the welding table 2 to ascend, the conveying table 1 conveys the next group of the first daughter board 8 and the second daughter board 9, thereby accomplish processing in batches, lifting unit 6 and the cooperation that pushes away subassembly 7, the first daughter board 8 of the completion of being convenient for weld, ejecting from carrying platform 1 of second daughter board 9, thereby can be to next a set of first daughter board 8, second daughter board 9 welds, the completion circulation, weld in batches, welding efficiency has been improved, thereby it welds by hand to need not the operation that the welding experience is abundant, only need operating personnel with first daughter board 8, first delivery port 3 is placed simultaneously to second daughter board 9, thereby operating personnel's requirement has been reduced.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.

Claims (10)

1. The utility model provides a circuit board welding set, includes and carries platform and welding bench, its characterized in that: the welding table is located the center of carrying the platform, the one end of carrying the platform is equipped with first delivery port, the other end of carrying the platform is equipped with the second delivery port, the both ends of carrying the platform all are equipped with conveyor, be connected with the synchronous drive subassembly between the conveyor, the bottom of welding table is equipped with lifting unit, one side of welding table is equipped with the top and pushes away the subassembly, the top push away the subassembly with lifting unit phase-match, first delivery port is used for carrying first daughter board, the second delivery port is used for the second daughter board, the top of welding table is equipped with the welding subassembly, the welding subassembly will first daughter board with the second daughter board welds.

2. The circuit board soldering apparatus according to claim 1, wherein: the conveying device is provided with conveying assemblies, at least two groups of conveying assemblies are arranged on the side wall of one side in one end of the conveying table, a synchronous belt is connected between the two groups of conveying assemblies, and the synchronous driving assemblies drive the synchronous belt.

3. The circuit board soldering apparatus according to claim 2, wherein: the conveying assembly comprises two conveying wheels, a conveying belt and a first gear, the two conveying wheels are arranged at the upper end of the side wall in the conveying table, the first gear is provided with a lower end of the side wall in the conveying table, the first gear is connected with the two lower portions between the two conveying wheels, the first gear is close to the inner side wall of the conveying table and is provided with a protruding portion, the conveying belt is arranged between the protruding portion and the two conveying wheels, the conveying belt is respectively used for conveying the first sub-board and the second sub-board, the synchronous belt is arranged between the first gear and the first gear at the same side in one end of the conveying table, the L-shaped supporting plate is arranged on the two sides of one side of the conveying assembly, and the L-shaped supporting plate is matched with the conveying belt.

4. A circuit board soldering apparatus according to claim 3, wherein: the synchronous driving assembly comprises a driving motor, a driving wheel, a first driving wheel, a second driving wheel and a driving belt, the outer side wall of the conveying table close to one end of the first conveying port is fixedly connected with a motor mounting seat, the driving motor is arranged on the motor mounting seat, the end part of the driving motor is rotatably connected with the driving wheel, the first driving wheel and the second driving wheel are both arranged on the outer side wall of the conveying table close to one end of the second conveying port, the driving belt is arranged between the driving wheel and the first driving wheel, the first driving wheel is meshed with the second driving wheel, the second driving wheel is positioned in the driving belt, synchronous shafts are arranged on the driving wheel and one side of the second driving wheel close to the conveying table, and the synchronous shafts penetrate through the synchronous belts in the conveying table, the synchronous shaft is provided with a driving wheel, the driving wheel is located in the synchronous belt, the driving wheel drives the synchronous belt to rotate, and the synchronous driving assembly drives the first sub-plate and the second sub-plate to move towards the center of the conveying table simultaneously.

5. The circuit board soldering apparatus according to claim 1, wherein: the lifting component is provided with a base which is arranged at the bottom of the inner center of the conveying table and is positioned right below the welding table, a first sliding chute is arranged in the center of the base, a first sliding column is arranged in the sliding chute, first sliding blocks are arranged at two ends of the first sliding column, the bottom of the welding table is provided with a second chute corresponding to the first chute, a second sliding column is arranged in the second chute, two ends of the second sliding column are respectively provided with a second sliding block, a hinge rod is hinged between the first sliding block positioned at one end of the first sliding column and the second sliding block positioned at the other end of the second sliding column, the two hinge rods are arranged in a crossed manner, the centers of the two hinge rods are rotatably connected, the welding bench is characterized in that a hydraulic telescopic rod is fixedly connected between the top of the base and the bottom of the welding bench and drives the welding bench to lift.

6. The circuit board soldering apparatus according to claim 1, wherein: the two sides of the welding table are provided with guide blocks, two side walls in the conveying table are provided with guide grooves, the guide grooves are matched with the guide blocks, one side of the conveying table is provided with a pushing opening, the other side of the conveying table is correspondingly provided with a discharge opening, the pushing opening and the discharge opening are communicated with the guide grooves, the pushing assembly is arranged at the pushing opening, and the pushing opening and the discharge opening are matched with the first daughter board and the second daughter board.

7. The circuit board soldering apparatus according to claim 6, wherein: the pushing assembly comprises a pushing cylinder, a cylinder mounting seat and a pushing plate, the cylinder mounting seat is fixedly connected to one side, located at the pushing opening, of the conveying table, the pushing cylinder is arranged on the cylinder mounting seat, the pushing plate is arranged on one side, close to the conveying table, of the pushing cylinder, the pushing plate is matched with the pushing opening, a discharging frame is arranged on the other side of the conveying table, a slope is arranged at the top of the discharging frame, and the discharging frame is located at the discharging opening.

8. The circuit board soldering apparatus according to claim 1, wherein: the welding subassembly is equipped with the welding frame, sliding connection has the sliding block on the welding frame, the bottom fixedly connected with welder of sliding block, the both sides fixedly connected with guard plate of sliding block, welder is located in the guard plate, the guard plate with first daughter board, second daughter board phase-match, carry the both sides fixedly connected with fixing base at platform center, the both ends of welding frame all are equipped with the support, the support is located on the fixing base, the support is equipped with the regulating part.

9. The circuit board soldering apparatus according to claim 8, wherein: the adjusting part is equipped with the fixed block, fixed block fixed connection be in the both sides at the top of fixing base, be connected with the threaded rod between the fixed block, the threaded rod passes the support, the threaded rod is equipped with the nut, the nut is screwed up the both sides of support.

10. The circuit board welding method based on claim 1 is characterized by comprising the following steps:

a. preparation before welding

Firstly, measuring a first sub-board and a second sub-board which need to be welded, then detecting the operation conditions of a conveying device, a synchronous driving assembly, a welding assembly, a pushing assembly and a lifting assembly, returning the operation conditions to an initial position, then adjusting the position of a support on a fixed seat to enable a welding frame to be positioned at the central position of a conveying table, loosening nuts at two ends of a threaded rod, then moving the support along the direction of the threaded rod, moving the support to a proper position, and then screwing the nuts at two ends of the threaded rod;

b. transport of circuit boards

The method comprises the steps that a first daughter board is placed at a first conveying port of a conveying table, a second daughter board is placed at a second conveying port of the conveying table, a driving motor runs to drive a driving wheel to rotate, the driving wheel drives a first driving wheel to rotate in the same direction through a driving belt, the first driving wheel is meshed with a second driving wheel to drive the second driving wheel to rotate in different directions, the driving wheel and the second driving wheel rotate in different directions, the second driving wheel and the driving wheel respectively drive a synchronizing shaft to rotate, the driving wheel drives the synchronizing belt to rotate, and a conveying assembly is controlled to run, so that the first daughter board of a first input port moves to a welding table at the center of the conveying table, and meanwhile, the second daughter board of a second input port moves to the welding table at the center of the conveying table;

c. soldering of circuit boards

After the first daughter board and the second daughter board are conveyed to the welding table, a welding area of the first daughter board is connected with a welding area of the second daughter board, a welding gun slides on the welding frame to weld a circuit board in the welding area, and a protection plate abuts against the tops of the first daughter board and the second daughter board;

d. transport after completion of welding

After the first daughter board and the second daughter board are welded, the hydraulic telescopic rod descends to drive the welding table to descend along the guide groove, two ends of two hinge rods which are arranged in a crossed mode respectively move towards two sides of the base and two sides of the welding table, so that the welding table with the first daughter board and the second daughter board descends in parallel, when the first daughter board and the second daughter board are located at the pushing opening, the pushing cylinder pushes the pushing plate, the pushing plate pushes the first daughter board and the second daughter board which are welded together, the first daughter board and the second daughter board are pushed towards the discharge opening, and the first daughter board and the second daughter board are discharged from the discharge opening and fall onto the discharge frame;

e. batch processing

And (d) after the ejection plate ejects the first daughter board and the second daughter board from the discharge port, the hydraulic telescopic rod upwards pushes the welding table to enable the welding table to return to the initial position, the first daughter board is continuously conveyed by the first conveying port, meanwhile, the second daughter board is continuously conveyed by the second conveying port, and the steps b to d are circulated, so that batch welding is completed.

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